NBC News quotes St. Lawrence County Sheriff Kevin Wells said earlier Friday that Delila and Fannie were in good health and were aiding the investigation.

CNYCentral, who had reporters at the scene of suspects' arrest, said that investigators targeted a home in Hermon that had two vehicles parked outside of it that matched the description of those possibly connected to the kidnapping.

A white Fiat van rammed into pedestrians outside enjoying a late afternoon stroll on Las Ramblas in Barcelona on Thursday killing at least 13 people and leaving hundreds injured. The Islamic State group claimed responsibility for the attack.